Pump



C. A. WAITZ March 12, 1929.

PUMP

Filed Oct. 28. 1925 7 A TZ'ORNEYS.

Patented Mar. 12, 1929.

UNITED SATS FFICE.

CHARLES A. WAITZ, 0F ROUSEVILLE, PENNSYLVANIA.

PUMP.

Application filed October 28, 1925.

i the wot-stingbarrel 'hroug'h corros it or dept s and in atlemptingg to lisconnect the working barrel from the coupling c in the salve seat the thread of the liner is usually stripped due to the dill'creinc in pitch. (lite ot the purpo-ies ot the present invention is to obviate this ditlieulty. Anoll er feature ol the invention is the threading oi the l ner at ioth ends so that it may be reversed tliiis varying the part of the liner on which the more severe wear ta es place. l eatures and details of the invei'ition will appear from the specification and claims.

The invention is illustrated in the accompanying drawings as follows i he drawing shows a vertical sec pump.

1 marks the ordinary removable working harth12 thetnhingr extendinn' trout the workion of a r; harreh 15 the coupling titling: at the lower end offhcworkingharreh-1 thestrainerpipe cxteiol nzzj from the coupling 5 the liner. 6 the pump plung r. 7 the pinup plunge stem or ll lllirtllliil of the stacker rod. 8 the standing vane and fl l'it standing c seat or titling.

The standing valve lit t inn is connected with the coupling fitting 3 by means of a nipple ll) this nipple having? a screw-rhreade:l connec tion ll wit h the tit l ing 5) and a screw-titreaded comicction 133 with. the *ouplingrlitt Thu working barrel 1 has a screw-threadcd eonneetion 13 with the coupling fitting 3 and the pitch of the screw thread 13 is similar to the, pitch of the screw-threaded connections ll and 12 When therefore, he tuhinoj is drawn and it is desired to l'tl'll'Wt the line' and the standing? valve the w irlting barrel is unscrewed from the coupling 3 and it' the liner has become fix d with the working: barrel through corrosion or deposits the nipple 10 will be unscrewed from one of the connections 11, or 12 coincidentally With the unscrew- Serial No, 334.

ing of the connecti iin 13 a ad inasmuch as the pitch is the sin e the threads ol neither are ei'rippedi The liner is connec ed with the lilting 5, lhron 1 internal sc ew lliwad on the liner and this is set up :2

it and this HJ-i action is a of target iamctcr than the pp e connect: -o t t in practice the niihonnection is always unwerewcd rath t the threaded connection Jag 9. (onseiictween the ll? ie of the thrads qrenily tl rcz't the liner.

er to provide the upper end of the with internal screw hreads similar c internal screw thri at the bottom l ter is removed so t tat in practice when it may he reversed thus 151 the parts of the barrel which are iii V to most severe wear. in or the nearing ot' the threads 1 7 is l the coupling 15 on the stem iu'lliciently large to project over the edge of the liner into contact with the walls of the tubing no as to prevent the treating ol' the threads; by the stem 7.

What I claim as new" is:

1, In a pump. the combination of a working barrel; a liner; a fitting; a screw connecion between the bottom or" the barrel and the lilllfl'; and a i between the liner and 1e fitting bar name pitch as t screw coiineetion.

2 l e .i toe ti'ilni ltlzitl m oi a workstvn nng rt l'vc fitting to connection l).-l\\'t* '-il the coupling; and the wot-tang barrel: and a nipple lit-tween the standing re iltllllffg and the coupling. the

sxrew pitch of the nipple l the my hand.

CHARLES A. VVAIT'Z.

tit? 

